Automatic flow-regulating valve.



A. S. B R U C E.

Patented Sept.. 26, 1916.

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APPucATloN man 1AN.14, 1915.

UNITED STATES- rali-ENEl oEEroE.

ALEXANDER BRUCE, 0F BANGOR, MAINE, ASSIGNOB OF ONE-HALF T0 JOHN JT.

LOGAN, 0F ALBANY, NEW YORK.

AUTOMATIC FLOW-REGULATING VALVE.

Specication of Letters Patent.

Application mea January 14, 191e. serial No. 72,027.

T0 all whom it may concern:

Be it known that I, ALEXANDER S. BRUCE, a citizen of the United States, residing in Bangor, in the county of Penobscot' and State of Maine, have invented certain new and useful Improvements in Automatic Flow-Regulating Valves, ofl which the following is a specification.

The object of my invention 1s to provide an automatic valve, of simple and cheap construction and of few parts, whereby the flow of fluidsV therethrough (especially those of gaseous form) may be automatically regulated by the action of the varylng pressure exerted by such fluids. Such valve may be used with advantage as in air-intake for the inlet of the manifold of internal combustion engines, and is shown and described herein as so placed.

Fromthe drawing and description it will be seen, that my said improved automatic regulating valve, may be used with advantage, to automatically regulate the flow of all fluids, by the varying pressure, whetherl the pressure upon the moving and actuating parts of the valve is varied by 1ncrease `o pressure upon the -inlet side, or diminutlofi of pressure upon the outlet side, of such moving and actuating parts.

My said invention is fully shown, described and claimed in the following specilication, of which the accompanying drawing forms a part, wherein similar numerals of reference designate like or equivalent parts wherever found throughout the several views, and in which Figure 1 is a face view of my said valve as applied to the manifold inlet-pipe of a .two-cylinder explosive vapor engine just above the carbureter. Fig. 2 is a view in detail of such, valve in central longitudinal section, showing the same in the closed position. Fig. 3 is a like view showing the same in the medial or half open position, caused by increased pressure upon the inlet or diminished pressure on the /outlet side, and Fig. 4 is a like view of the positioning of the moving parts, when upon further increase of exterior or diminution of interior pressure the valve-disk is forced to the fully open position.

In the embodiment shown the valve comprises an outer shell 1 having a diminished 4end 2 at one end thereof which is externallv screw threaded and. the other en@ inte/maui' screw threaded. The diminished end has a conical opening enlarging in its inward d irection, the diminished end 2 forming with the shell 1 a shoulder 3, In the shell 1 a reclprocating member or active member 4 of the valve is disposed which comprises an outer cylindrical portion 5 having near one end an inward radially extending vflange 6, the inner end 7 of which is bent at right angles to such ange 6 and extends out be; yond the end ofthe cylindrical portion 5 adjacent thereto. When positioned in the shell 1 the outwardly extending portion .7 of the active member 4 extends ina direction away from the diminished end of the shell 1. To the internally` screw threaded portion of the shell 1 a disk member 8 is secured which is provided with a central orifices 10 surrounding such central bore.

Secured in the bore 9 of the disk 8 is a screw threaded shank 11 of the guide member 12 of the active member 4. flflhmlgguide` member 12 is provided with-Piattiy enlargedannular portion 13 to form a shoulder and an elongated taperingmember 14, betweenfgiwhich tapering member 14 and thewshoulder 13 there is providednan.r for the reception '4C IQ Stop-washerl, the shoulder 14 being disposed betweenfthe annular recess 15 and the shank 11. Q

In operative position, the tapering member 14 is disposed in the shell 1 with its diminished end projecting into the :conical opening in the diminished end 2 andffisprovided with a washer 16 of any suitable zmaterial against which the diminished outwardly extending portion 7 of the'l'iactive member 4 is adapted to abut, the activev p member 4 being normally maintained contact with this washer 16 by the coil spring 17 strained between the shoulder 3.and I the Harige 6 of the active memberfll and en circling the tapering member 14. For lock ing the shank 11 in position on the-disk 8,

a nut 18 is secured to the outwardly extend-ff of a fuel conduit of a combustionengine, in the present instance, Fig. 1, the-valve being shown as secured to the manifold M of an automobile engine between the carbureter C 6 and the combustion chamber not shown, the

external screw threaded portion 2 being secured into an opening provided in the manifold M.

In the operation ofthe device, it will be 10 seen that according to the vacuum created uponthe outlet side of the valve, or an excess of pressure `created upon'the inlet side,

vtheactive memberor disk-valve 4 will be drawn a greater or less extent toward the diminished vend of 2; against the tension ofthe spring 17 and thereby, due to the tapering member 14 gradually narrow- 111g4 as it `approachesr the Ydiminished por-` tion of the shell `2, the opening between the active member 4 and the tapering membery 14 ,f will increase, and thus the air drawnin through the perforations 10, will be more `or less freely drawn in therethrough, according to the size of the opening between the aotivemember 4 and the tapering member 14, which is determined by the variation of pressure,- and proportioned Iby theadjustment of the tapering `member 14, bymeans of its positioning.

It is obvious that ,various changes and a casinghavingan inlet `and an' outlet; a I

.tapered-spindle or member adapted by change in position to vary lthe area of the.

casing passage; and a'bodily moving diskmember lor valve with an orifice through which.y thespindle passes, reciprocated upon the spindle byvariations in the pressure,

from the fully open to the fully closed posi-` tion; andr a spring normally forcing the disk-member valve'into closure.

'3. In an-automatic flow-regulating valve,

a `stationary member; a shoulder on said stationarvmember having an elongated tapering portlon extending therefrom; and an activevalve member mounted` to bodily reciprocate relative .to said tapering portion to `increase or decreasethe opening of the active valve member..

A .4;"Inian, automatic flow-regulating valve,

`a stationary member having a: shoulder and modifications may be made to the details of` sure,- from the fully Vopento thefully closed an elongated tapering portion' extending therefrom; an active valve member mounted to bodily reciprocate relative to said taperingv portion to increaseordecrease the opening-.of the valve member, the opening `of said valve beingA formed :between said tapering -portion and said active member.

5.@In an automatic iloW-regulatin valve,

a stationary'memberhaving a shoul er and an; elongated vtapering, portion extending therefrom; an active valve member mounted to bodily reciprocate relative vto saidxtapering s portion, they openin i Ato said valve beingl` formed between saitftaperingl portion, and ,A said active valve member; and means Ifor '80' normally maintaining said active member: against said shoulderfin which position'the, valve will be closed..

6. In an automatic flow-regulating valve,

a shell having a plurality of perforations at its inlet end to permit of the passageof air therethrough; a stationary member yfixed in said shell,and.havingran elongated tapering portion.. dand a 4shoulder. adjacent thereto; and an activevmember mounted' to recipro- 90 cate relative to; said tapering portion, and being disposed to shut olf the passage of 'air from` said `perforations through said shell when vadjacent to said shoulder, and to permit such passage of air moreor less freely according to the distance removed from such shoulder.

7. In an automatic flow-regulating valve, a shell having-a plurality of perforations at` itsinlet end to permitthe passagey of air therethrough; a stationary member fixed in said shell and havinglan elongated tapering4 portion and a shoulder adjacent-thereto; an active moving member or disk mounted` to` reciprocate relative to said tapering portion, and being disposed to shut .off ythe passage ofl air through" saidk shell when adjacent to,

said shoulder, and to permit such passa e1 of 'air more or less freely `according tot eA distance removed `from .such shoulder; and a spring for normally; maintaining` said =active member against saidl shoulderin the. closed position whereby variations ofzthe iuid pressure, Vfrom vany cause, uponeither face ofthe active member, willv causemovement thereof -to vary :the area of thepassage of the active member or. valve disk.;

8. In an automaticfilow-regulating valve,

a shell having a disk `at its outer end pro-A vided vsith a plurality'of perforations l.toty 120 permit `the passage of air therethrough, ya-

screw threaded bore in saiddisk; a 4stationary member havinga screw `threaded shank secured in saidbore moving `an inwardly extending; tapering portion, and a shoulder 4between said shank and said taperingportion; an activememberzordisk mounted 1to-` reciprocate relative to said tapering portionf and Abeingdisposed to shut oi the passage. o f air yfrom said .perforations through; saidl shell when` adjacent to said shoulder, and

1 to permit such passage of air more or less threaded connection betweensaid shank and tending tapering portion, and a shoulder located between said shank and said tapering portion, the inner diminished end of said tapering portion being disposed in said diminished tapering opening of said shell; an active member mounted to reciprocate relative to said tapering portion and being disposed to shut oil' the passage of air from said perforations through said shell when adjacent to said shoulder, and to permit such' passage of air more or less freely according to the distanceremoved from such shoulder;

' and a spring for normally maintaining Said active member against said shoulder; the screw threaded connection between said shank and said disk permitting the tensional adjustment of said spring, and the adjustment of said taperingmember relative to said diminished opening.

10. In an automatic flow-regulating valve, a shell having an inlet orifice at its outer end for the passage of Huid therethrough; a stationary member fixed in said shell and having an elongated tapering portion and a shoulder, there being an annular recess between said elongated portion and said shoul` der; a sealing annular member or washer disposed in said annular recess; and an active moving mem-ber mounted to reciprocate relative to said tapering portion and having the outer cylindrical portion reciprocating, and fitting fluid tightly in the `inside of said shell, an inward radially extendmg flange, and an inner cylindrical portion at the inner end of said ange through seat to abut against said washer to shut off' the passage of air from said 'inlet orifice through said shell, and to permit said passage of air more or less freely according to the distance removed from such washer, the

opening of said valve being formed between said tapering portion of the stationary member and said active moving member, the tapering portion diminishing as it recedes from said washer, and therebythe opening formed between said active member and the tapering portion increasing as the active member recedes from said washer.

11. In an automatic flow-regulating-valve, a casing or shell having an inlet at one end and an outlet at the other; a tapered regulating spindle extending into the outlet; means for'varying the position of the tapered spindle in the outlet so as to vary the area-thereof means for locking the tapered spindle in any desired position, and a moving member bodily reciprocated, having a central orifice located upon such spindle, such member being automatically moved by the pressure of the incoming fluid upon one `side of such member, and moved reversely in the other direction by Spring pressure. 12. In an automatic flow-regulating valve, a casing or shell having an inlet at one end and an outlet at the other; a tapered regul which said tapering portion extends; lthe Y inner cylindrical portion terminating a disk or member having a central passage sui perposed upon the tapered spindle, -tting snugly at the periphery to the inner wall of the shell or casing, adapted to be automatically reciprocated uponsuch spindle, from the fully closed to the fully open positions, by variations of the pressure, from any cause, on either side of such valve-disk.

ALEXANDER s. BRUCE.

Witnesses: L. RooNEY,

E. P. CARLISLE. 

